#!/usr/bin/env python3
# -*- coding: utf-8 -*-

'a test module'

__author__ = 'zhangjiuyang'

import sys

def test():
	args = sys.argv
	if len(args)==1:
		print('hello,world')
	elif len(args)==2:
		print('hello, %s!' % args[1])
	else:
		print('too many arguments!')

if __name__=='__main__':
	test()